Yannong 19 is a wheat variety cultivated by Yantai Academy of Agricultural Sciences. It has been approved by many provinces and cities such as Shandong and Jiangsu, and passed the certification of Jiangsu Province in 2001. According to an announcement issued by Jiangsu Province, the variety is semi-winter, medium-late and late-maturing, suitable for planting in the Huaibei region of the province, and has a large flexibility of sowing date. It is appropriate to sow on October 5-20. In the coastal area, the farmers were sowed in early November and the planting was delayed. .